#include <stdio.h>
#include <string.h>

int check(char *s, int len);

int main(void)
{
    char s[1000];
    fgets(s, 1000, stdin);
    int len = strlen(s);
    check(s, len);
    return 0;
}

int check(char *s, int len)
{
    int count = 0;
    for (int i = 0; i < len; i++)
    {
        if (s[i] == 'a' || s[i] == 'e' || s[i] == 'i' || s[i] == 'o' || s[i] == 'u' || s[i] == 'A' || s[i] == 'E' || s[i] == 'I' || s[i] == 'O' || s[i] == 'U')
        {
            count++;
        }
    }
    printf("%d", count);
}